Memorandum from R. L. Murray to Dr. Clifford K. Beck
Typescript
2 pp.
July, 1951
MurNBconcretesecond070051



OFFICIAL USE ONLY

TO: Dr. Clifford K. Beck
FROM: R. L. Murray
SUBJECT: Concrete Tests -- Second Series
COPIES TO: Dr. R. E. Fadum, Mr. C. R. Bramer, and Members of the Reactor
Committee

The effect of special setting agents that would allow the reduction of the
amount of water added was studied. The goal was to achieve a mix that was fluid
enough to make pouring easy for a contractor, with sufficient speed of setting
and final strength.

All ingredients except Colemanite were thoroughly mixed. Five minutes later
the Colemanite was blended in this test cylinder, and was well set by 24 hours.


[OFFICIAL USE ONLY]
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